<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>rowspan transition</title>
</head>
<body onload="document.getElementById('target').setAttribute('rowspan',2);">
<table><thead ><tr><td>td</td><td id="target" rowspan="0">x</td></tr><tr ><td rowspan="2">x</td></tr></thead></table>
</body>

</html>
